Re: Symbol reference not detected in ARM assembly file

[Alain Kalker]

On 02/09/2013 10:58 PM, Alain Kalker wrote:
> (If GNU GLOBAL doesn't support ARM assembly, please ignore.)
>
> OS: Arch Linux (rolling release)
> Product: GNU GLOBAL 6.2.7
>
> When browsing the Linux kernel, I found that GNU GLOBAL didn't detect 
> references to a preprocessor constant in an ARM assembly (.S) file.
>
> Steps to reproduce:
>
> Get and prepare most recent Linux kernel:
> $ git clone https://github.com/torvalds/linux.git
> $ cd linux
> $ export ARCH=ARM
$ export ARCH=arm # Oops...
> Generate tags
> $ make gtags
>
> Expected result (simulated here by `global -gx`)
> $ global -gx TEGRA_FLOW_CTRL_VIRT
> TEGRA_FLOW_CTRL_VIRT   63 arch/arm/mach-tegra/sleep-tegra20.S ldr    
> r3, =TEGRA_FLOW_CTRL_VIRT
> TEGRA_FLOW_CTRL_VIRT   58 arch/arm/mach-tegra/sleep-tegra30.S ldr    
> r12, =TEGRA_FLOW_CTRL_VIRT
> TEGRA_FLOW_CTRL_VIRT   24 arch/arm/mach-tegra/sleep.h #define 
> TEGRA_FLOW_CTRL_VIRT (TEGRA_FLOW_CTRL_BASE - IO_PPSB_PHYS \
>
> Actual result:
> $ global -dx TEGRA_FLOW_CTRL_VIRT
> TEGRA_FLOW_CTRL_VIRT   24 arch/arm/mach-tegra/sleep.h #define 
> TEGRA_FLOW_CTRL_VIRT (TEGRA_FLOW_CTRL_BASE - IO_PPSB_PHYS \
> $ global -rx TEGRA_FLOW_CTRL_VIRT
> $ # no result
> $ global -sx TEGRA_FLOW_CTRL_VIRT
> $ # no result
>
> Kind regards,
>
> Alain Kalker